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首页> 外文期刊>Separation and Purification Technology >Role of electrolyte on anodic mineralization of atenolol at boron doped diamond and Pt electrodes
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Role of electrolyte on anodic mineralization of atenolol at boron doped diamond and Pt electrodes

机译：电解质对掺硼金刚石和铂电极上阿替洛尔阳极矿化的作用

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Anodic oxidation of atenolol, known as β-blocker, has been investigated using boron-doped diamond (BDD) and Pt electrodes. The mineralization trend of atenolol in the presence of NaCl, Na2SO4 and NaNO3 was followed using total organic carbon analyzer. The disappearance of chloride ions and generation of active chlorine (Cl2, HOC1,0C1~) were analysed by argentometric and iodometric methods, respectively. The BDD anode was found to be effective in the presence of Na2SO4 whereas Pt yields better removal in the presence of NaCl. The initial concentration of NaCl and applied current density on the mineralization of atenolol were found to be significant for both BDD and Pt anodes. These results are explained in terms of electrogenerated oxidants such as ~·OH, SO4~(·-), S2O8~(2-), Cl2, HOCl and OCl~-. The evolution of chlorine at BDD and Pt with respect to NaCl concentration was studied by means of cyclic voltammetric technique. Though the rate of mineralization was observed to be initially higher in the presence of Pt anode, the overall rate of mineralization is more or less similar beyond 15 h of electrooxidation. The slow degradation at the later stages of electrooxidation was attributed to the presence of residual chlorinated organic compounds which are very refractive. The complete mineralization was achieved in the presence of Na2SO4 using BDD as anode.
机译：已经使用掺硼金刚石（BDD）和Pt电极研究了称为β受体阻滞剂的阿替洛尔的阳极氧化。使用总有机碳分析仪追踪在NaCl，Na2SO4和NaNO3存在下阿替洛尔的矿化趋势。分别用银和碘量法分析了氯离子的消失和活性氯（Cl2，HOC1,0C1〜）的生成。发现在Na 2 SO 4存在下BDD阳极是有效的，而在NaCl存在下Pt产生更好的去除。发现NaCl的初始浓度和在阿替洛尔矿化上施加的电流密度对于BDD和Pt阳极均很重要。这些结果用电氧化剂如〜·OH，SO4〜（·-），S2O8〜（2-），Cl2，HOCl和OCl〜-来解释。利用循环伏安法研究了BDD和Pt中氯相对于NaCl浓度的演变。尽管观察到最初在Pt阳极存在下矿化速率较高，但在15小时的电氧化后，总矿化速率或多或少相似。在电氧化的后期缓慢降解归因于存在高度折射的残留氯化有机化合物。使用BDD作为阳极，在Na2SO4存在下实现了完全矿化。

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